question Re: accessing variable names in Ambari through REST in Archives of Support Questions (Read Only)

accessing variable names in Ambari through REST

nyadav — Fri, 31 Mar 2017 21:46:52 GMT

How can I list the existing variable names and their values used across various configurations of Ambari through REST API for example {{namenode_heapsize}} ?

Re: accessing variable names in Ambari through REST

krajguru — Fri, 31 Mar 2017 21:48:59 GMT

You can use the below call which will list all the values for that specific service :

http://<Ambari-hostname>:8080/api/v1/clusters/<cluster-name>/configurations/service_config_versions?service_name=HDFS

Re: accessing variable names in Ambari through REST

nyadav — Fri, 31 Mar 2017 21:52:20 GMT

Thanks @krajguru, that was exactly I was looking for 🙂

Re: accessing variable names in Ambari through REST

kramakrishnan — Sun, 02 Apr 2017 13:18:36 GMT

@nyadav To add to @krajguru's answer:

You can use query parameter is_current=true to retrieve the latest configuration version in case you have multiple versions of configurations.

E.g

http://<Ambari-hostname>:8080/api/v1/clusters/<cluster-name>/configurations/service_config_versions?service_name=HDFS&is_current=true